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- Warehouse: Spot
- Warranty: 365 days
- Quality: Original module
- Condition: New
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- Contact number: +86 18059884790
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Triconex D03625 (3625) TMR Digital Output Module
Product Brief Description
Triconex D03625, commonly called DO3625 or 3625, is a 32-channel TMR digital output module for Tricon SIS safety instrumented system. It receives safety logic commands from the main processor and drives 24VDC field actuators, solenoid valves, trip relays. It follows SIL3 safety standard with 2-out-of-3 voting, widely used in ESD, BMS, F&G and HIPPS safety loops.

Features
- 32-channel 24VDC digital output, non-isolated common return design
- TMR triple modular redundant architecture, continuous self-diagnosis, output circuit supervision
- Support supervised output, detect short-circuit, open-circuit and load fault
- Hot-swappable, replaceable without shutting down the whole Tricon rack
- SIL3 certified, meets IEC61508 / IEC61511 safety requirements
- Configuration software: TriStation 1131 for output logic and fault alarm setup
- Compatible with Tricon 3008 / 3009 chassis, match with TCM4351B communication card and AI3704E analog input card
Application Scenarios
- Oil & gas, refinery ESD emergency shutdown solenoid drive
- Power plant gas turbine and boiler BMS burner trip output
- Chemical plant F&G fire and gas system alarm & shutdown output
- HIPPS high integrity pressure protection system valve control
- Legacy Tricon rack spare replacement and DO channel expansion
FAQ
Q: What does D03625 / DO3625 mean?
A: D03625 is the full order part number; DO means Digital Output, 3625 is the core model number.
Q: What is the difference between 3625 and 3664?
A: 3625 is standard 32-channel 24VDC DO; 3664 is high-current version for heavy load actuator drive.
Q: Is 3625 channel isolated?
A: It is non-isolated common return type; separate isolation relay is recommended if field ground potential difference exists.
Q: Is this module discontinued?
A: Classic 3625 series is legacy Tricon hardware, original new production stopped. Spare supply relies on new surplus and fully tested refurbished units.
Q: Common faults?
A: Supervised load fault alarm, TMR channel mismatch, backplane communication failure, output channel no switching action.



